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公开(公告)号：US4316075A
公开(公告)日：1982-02-16
申请号：US138292
申请日：1980-04-08
摘要： A welding method in which a pair of base metals are welded together by swinging the welding torch right and left, and a device for practicing the method. In the method, the arc current is continuously detected, and sampling pulses are formed in time slots provided by the swinging motion of the torch. The arc welding currents are sampled and held with the aid of the sampling pulses, whereby the peak values of arc currents flowing when the torch is swung right and left are detected, and the position of the torch is correctively shifted right or left according to the difference between these peak values.
摘要翻译： 通过左右摆动焊炬将一对母材焊接在一起的焊接方法和实施该方法的装置。 在该方法中，连续地检测电弧电流，并且通过割炬的摆动运动提供的时隙中形成采样脉冲。 借助采样脉冲对电弧焊接电流进行采样和保持，从而检测到手电筒左右摆动时流过的电弧电流的峰值，并根据 这些峰值之间的差异。
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公开(公告)号：US4305096A
公开(公告)日：1981-12-08
申请号：US124818
申请日：1980-02-26
CPC分类号： B23K9/127
摘要： In a method of detecting a weld line, the positions of the weld line and the welding wire are detected from the video signal of the weld, which is provided by an industrial television camera. The video signal of the weld is compared with a predetermined threshold so as to be binary-coded into a signal representing a dark part and a signal representing a bright part. Clock signals having a predetermined frequency are counted with the binary-coded signals as gating signals, thereby to count the lengths of the dark part and the bright parts. The count values are subjected to difference processing, so that the positions of the weld line and the welding wire are detected from the maximum values of the results of the difference processing.
摘要翻译： 在检测焊接线的方法中，从由工业电视摄像机提供的焊缝的视频信号中检测焊接线和焊丝的位置。 将焊缝的视频信号与预定阈值进行比较，以二进制编码成表示暗部分的信号和表示亮部分的信号。 具有预定频率的时钟信号用二进制编码信号作为门控信号进行计数，从而对暗部分和亮部分的长度进行计数。 对计数值进行差分处理，根据差分处理的结果的最大值检测焊接线和焊丝的位置。
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